213303424303357 has 2 divisors, whose sum is σ = 213303424303358. Its totient is φ = 213303424303356.

The previous prime is 213303424303301. The next prime is 213303424303369. The reversal of 213303424303357 is 753303424303312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213302928751236 + 495552121 = 14604894^2 + 22261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213303424303357 is a prime.

It is a super-2 number, since 2×213303424303357² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213303424300357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106651712151678 + 106651712151679.

It is an arithmetic number, because the mean of its divisors is an integer number (106651712151679).

Almost surely, 2^{213303424303357} is an apocalyptic number.

It is an amenable number.

213303424303357 is a deficient number, since it is larger than the sum of its proper divisors (1).

213303424303357 is an equidigital number, since it uses as much as digits as its factorization.

213303424303357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 43.

Adding to 213303424303357 its reverse (753303424303312), we get a palindrome (966606848606669).

The spelling of 213303424303357 in words is "two hundred thirteen trillion, three hundred three billion, four hundred twenty-four million, three hundred three thousand, three hundred fifty-seven".